BPA In Dental Filling Poses Danger

Dental Filling

The Bisphenol A (BPA) in dental filling could pose a danger to your health, US researchers have found. But they are suggesting continued use of dental sealants as their benefits could far outweigh risks. BPA, a man-made chemical, is found in a variety of everyday items - and in most humans, according to a new Canadian study. It is used to stiffen plastic bottles, line cans and make smooth paper receipts.

BPA is classified as a so-called endocrine disruptor. While such chemicals may cause a host of health problems, most of the direct evidence regarding BPA comes from animal studies that don't automatically translate to humans.Actually dental sealants and fillings don't contain BPA, but many of them contain compounds that turn into BPA on contact with saliva. Sealants are transparent synthetic resins applied to the chewing surfaces of molars and premolars in young children and teenagers as a preventive measure against tooth decay in the occlusal pits and fissures.

Following a query from a mother on the safety of the sealants, pediatric endocrinologist Abby F. Fleisch, MD, and colleagues at the Children's Hospital, Boston, performed an exhaustive review of the scientific evidence. They came to two conclusions:

BPA does indeed form in the mouth after some dental sealants and fillings are applied. BPA can be found in the saliva three hours after dental work is completed. It's not at all clear whether this poses a health risk.

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